Base of a portable blender



FIG. 1 is a front view of a base of a portable blender showing the newdesign;

FIG. 2 is a left-side view thereof;

FIG. 3 is a top view thereof; and,

FIG. 4 is a front-left perspective view thereof.

The portions shown in broken lines form no part of the claimed design.

CLAIM The ornamental design for a base of a portable blender, as shownand described.